Locking device for grease-cups.



R. G. KISSINGER.

LOCKING DEVICE FOR GREASE CUPS.

APPLICATION FILED SEPT. 2. 1913.

1,149,268. Patented Aug. 10, 1915. 7

FJG 3.

WITNESSES 6W 5, AV C(W ATTORNEY 25 a tween the. two members ofthe cup when 1t is desired to connect them.

A @niuo 'nAY G. KISSINGER, or CAMDEN, new JnnsnY.

LOCKING DEVICE non onnasn-curs.

masses.

Specification of Letters Patent.

Application filed September 2, 1913. Serial No. 787,589;

for GreaseCups, of which the following is.

a specification.

My invention relates to improvements in looking devices for grease'cups of the character comprising a portion which is adapted to be secured .toothe part to be lubricated and a detachable cap for such portion.

One of the objects of :l11yiIlV6I1tlOI1 is to provide an improved locking device which is secured to andcarried upon the cap member of the grease cup and which is provided withmeans which is adapted to engage frictionally the interior of the base portion thereof. to prevent accidental separation of the cap. from such portion. I h

A further object of my invention is to so relatethe locking device to the parts comprising the cup that it does not interfere in any way with the initial connection be- Heretofore, as faras I am aware, locking devices of the character to which my'invention relates have been of-ysucha natureand have bornesuch relation 13013116 parts of the cup structure that they have interfered with the ready initial connection of the two mem: bers. It is animportant feature of my in. vention that this objection has been obviated.

I A further purpose of myinvention is to. simplify the construction while atthe same time maintaining efficiency of action. 1

vention will be referred to hereinafter or I the detailed description thereof. i In the' accompanying drawingsfll have illustrated convenientforms of embodiment of my invention but it will be understood that changes in the details of'construction may be made within the scope ofthe claims without departing therefrom. I j I In the drawings gure 1' 's a, llongitudinal central section of a grease cup "provided 1 with my invention 5Fig. 2.is asimilar' view with the parts in somewhat different relation withrespect to each other; Fig. dis a transversesection on the line 3-3 of-LFig. 2.; Fig. i is a perspective view of the spring locking device illustratedin Figs. 1,2 and Patented nag. is, 1915.

3; Fig. 5 is a longitudinal sectional view of a grease cup provided with a modified construction of spring locking device embodying my invention; and Fig. 6 is a transverse sectional view taken in the same relative position with respect to the cup'as Fig. 3 but showing amodified construction of cup provided with a spring locking device such as is shown in Figs. 1 to 4 inclusive. 4

' Referring to Figs. 1, 2, 3 and 5 of the drawings, 1 designates-the base portion of a grease cup provided with a flanged screwthreadedportion 2 and also with a poly, onal shaped portion 3 which provides means to be engaged by a wrench for engaging and disengaging the reduced screwthreaded end portion 4: with a tapped hole formed in the partto be lubricated. Inter mediate the polygonal portion 3 and the,

screw-threaded portion 2 there is an inverted truncated cone-shaped portion 5 which is the portion of thev base of the cupwith which the spring locking device first ontacts, as .will be hereinafter set forth. y

v 8 designates the grease cup cap provided The parts 1 and 8 may be constructed by pressing from sheet metal or otherwise, as may be desired. i p The constructionof grease cup shown in F ig.fl6.f is identical with that shown in the preceding figuresv of thedrawing and the same preference-numerals may be? applied with interior screw-threads which are ada'p't- Z 7 ed to engage with the externally screw-' I threaded part 2 upon the base 1 of the cup.

thereto withlthe exception 1 of the intermediate portion correspondingto theypolygonal p y s portion 3 which in said Fig. 6 is round or Other objects and advantages of my incircular in cross-section, as indicated at110. Referring to Figs. 1, 2, 3, 4 and 6, the

locking device consists of a wire spring inthe drawings i theangle between the .bot-

tom and side walls. s a p The endsof the spring are extended horizontally and divergently in a general radial.

direction-into the interior ;of the cup adja cent to the inneryside of the bottomof the. '3 cap 8. :One of theendste-rminates at the point 12 as shown. The other end is extended downwardly. and, somewhat laterally,

as shown at 13 in Fig...1 of the drawings, and is provided at its extreme lower end a locking device consists of a spring wire bent soas to form a circular portion 11 as-ln the i with a bend constituting an eye or 14.

It is to beQnoted at this point, however, that my invention is not li'mited'to a construction having a bend or loop of this cha-racte g'but the end of the wire may terminate in any 7 -manner desired. The length or height of 7 the-part 13 and its bend or loop is such that when it is desired to connect the cap 8 with the base portion 1 of the cup oneortwo turns of the cap 8, after its connection with the screw-threaded portion 2 of the base 1,

maybe made before the lower end of the portion 13 contacts with the inclined inner surface ofthe portion 5 of the base '1. This is a very desirable arrangement and relatlon because it facilitates the placing of'the cap 8 upon the base 1 of the cup. Afterithe lower end of the part. 13 ofthe locking toremovethe same from'the part 1." "As the cap is screwed farther and farther down upon the screw-threaded part 2 of the base 1 the lower end of the part13of the locking spring is caused to move inwardly as indicated in Fig. 2 of the'drawing andtoenter the region within the polygonal portion 3 of firmly against the sides of such polygonal portion and by reason of'thefriction between the end ofthe, spring and suchusi des,

prevents accidental-turning of the cap in" either direction. 7 a

As; already indicated, the construction shown inFigJ-G is identical with that-shown in Figs. 1, 2,3 and 4 with the exception of V the fact that the portion 10 thereofjcorresponding to the polygonal portion 3in Figs.

1, 2 and '3 is circular in 'cross section.f-i-The' v friction; howeverybetween theinterior'sun face of this circular portion and the :lower end o'f the portion :13 of thespringlocking "device issuliicient to prevent accidentaldisengagernent'and separation of the cap from the base part l'fof the cup.

(I will now refer againto Fig. 51in which a modified construction of spring locking device is shown. In this figure the vspring preceding figures, the oppositeend portions of which-are extended horizontally and divergently ina general radial direction toward the central portion of the interior of the'cap 8f'adjacent to the'bottom' of thelsaine. Both ends of the wire are then extended downwardlyas shown at 15 and-are 'provided'at K TheIparts-l5 terminate otherwise as- "maybe desired;

their ends with[' bends forming loops 16.

3 QIh the construction shown in Fig; 5, as

in the 'pre'vious constructiongthecap 8 is connected to the base 1 by a turn-or two bespring contact "with the downwardly in- .fore the lower ends of the parts 1575f the clined interior surfaces of the part 5' 'of'the 7 parts have been caused to bear firmly against "theinclined interior surface ofth'e part 5, the friction is suiiicient to prevent accidental disengagement of the cap 8 from the screw-threaded part '2 of the base 1', o -Upon the further downward movement of the, cap 8 with respect to thebase 1 of the e basel of the cup.- After the ends of these cupthe lower ends of the parts 15' enter the space within: the polygonal portion 3 and contact with more or less'force, depending e the base 1 to the: parts to be lubricated.

of the greaseso that it is main- There is little or no tendency of the part 13 movement of the grease in the base 1.

' When the'cap 8 is provided with'the conand its bend or loop 14 to cause an upward the base 1; When "in such' position it bears struction of locking spring shown in Fig. 5 and is rotated-the two downwardly eXj tendlng portions 15 and their bends or loops 16 cooperate to cause a tendency .of the V grease in the base portion'l of the cup to move upward, As a result'of suchtendency of upward movement the portion of the said cup, withinthe region of the ,poly onal portion '3 and belowthat region to a point within the region indicated by the reference numeral 3 'may be cleaned and freed of grease; One result of the tendency of the grease' in th'ecup to move upward is that any dirt or foreign matter which may ffind 1ts way into the cup is lifted tothe top 1 of the grease and may be removed "and is thereby'prevented frompassing out'of the cup on to therparts' to be lubricated. Not- -1 15' withstanding the tendency of upwardiniovement of the grease the pressure exerted V thereon by the cap-8' may be relied onto effect a discharge of" suflicient greaseffor lubricating purposes.

I claim ing oneffof its ends extended inwardly of said member and longitudinally "thereof V a ,7 a "1; A'grease cup comprising base and cap I members, one of the said'members having a I locking device secured" thereon}. the said locking device consistingof a circular portion seated inithe said member and havi into position to engage-the interior isurare connected together. t

face of'the other of said melinberswhen they 2. A grease cup comprising base and cap members and havinga locking device consisting of a spring member having a circular portion secured in the cap member, the said device having an end extended inwardly and transversely of said cap member and longitudinally thereof toward its open end and being adapted to engage the interior surface of the base member when the said base and cap members are connected together.

3. A grease cup comprising base and cap members, the said cap member being adapted to have screw-threaded connection with the said base member and. a spring acting looking device havinga circular portion seated in the angle between the sides and bottom of the said cap member and having one end extended transversely of said cap member and longitudinallyof the said cup and beingin engagement with the interior of the said base member when the two members are secured together. a

4. A grease cup comprisingbase and cap members which are adapted to be, secured together by a screw-threaded connection, whereby the said members maybe adjusted toward and from each other, "and a locking device consisting of a wire spring having a circular portion seated inthe cap member in the angle formed between the sides and the bottom of the cap member and, having a portion extended radiallywithin the said cap member'and then extended longitudinally thereof, the end of which is adapted to engage with difl'erent portions of the interior surface of the said base member and to thereby prevent accidental disengagement of the said members.

members having adjustable engagement with each other and a locking device consisting of a wire spring member having a portion secured within the cap and having its end portions extended horizontally inwardly of said cup and then longitudinally thereof in general parallel relation with re spect to each other, the ends of the said extended portions being adapted to contact at opposite points with the interior surface of the saidbase member.

6. As an article of manufacture, a spring lock to prevent accidental disengagement of the members of a grease cup, the said lock consisting of a spring .wire having a circularly shaped portion and an end portion extended radially of the said circular portion Y I and then at an angle transverse to the plane of the said circular portion, substantially as described.

7.,A grease cup comprising base and cap members and having a locking device provided with a circular spring portion adapted to be held in the cap by its spring action, the said portion having an extension one part of which extendstransversely of the cup and another part longitudinally thereof, the latter part projecting into the base member and contacting against the same for c the purpose stated;

In testimony that I claim the foregoing as my invention, I have hereunto signed my name this 30th day of August, A. D. 1913.

RAY e. KISSINGER. A

r In the presence of HORACE 'D. Rnnvn, CYR S N. AnDERsoN Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents.

Washington, D. G. 

